Peptidi

Myelin Basic Protein (MBP)
MBP-B (84-102) DRB1*15:01 is a short part of the myelin basic peptide. Myelin basic protein is one of the major protein found in myelin.
MBP-B (84-102) DRB1*15:01
MBP-B (84-102) DRB1*15:01 is used to stimulate immune response and T cell activity. MBP-B (84-102) DRB1*15:01 is also considered as a reference positive control in binding affinity with DRB1*15:01 molecules.

Selective blocker of Kv1.4

Blocker of voltage-gated sodium channels and T-type Cav

KLPGF peptide is a sequence from egg white albumen. This peptide have recently shown interest for Alzheimer’s disease.

MiniAP-4 peptide is a short nontoxic derivative of apamin (a neurotoxin from bee venom) used as a blood-brain barrier (BBB) shuttle peptide.

APETx2 is a drug that inhibits the activity of apetx2, a protein which is involved in the regulation of ion channels and endothelin-A receptors. APETx2 has been shown to inhibit the activity of channels involved in pain perception and may have therapeutic potential as a pressor agent. This drug has also been shown to have anti-inflammatory properties, which are likely due to its inhibition of EGF receptor activity. The mechanism of action for this drug remains unclear, but it may work by blocking the channel or receptor for EGF.

L-asparaginase is a drug that inhibits the production of asparagine, which is an amino acid that is used in the synthesis of proteins. It has been shown to be effective against T-cell lymphomas, as well as other cancers such as leukemia and colorectal cancer. L-Asparaginase has been shown to inhibit mitochondrial functions in blood samples from patients with prostate cancer. This inhibition may lead to cell death. L-Asparaginase binds to the sephadex G-100 column in a similar manner to sodium citrate and prevents the formation of polymers when it combines with ATP. The enzyme can also be found in primary cells and liver cells, where it causes hypoglycemia by inhibiting glucose production. L-Asparaginase also inhibits dna synthesis by binding to DNA polymerases, preventing their attachment to nucleotide triphosphates (e.g., ATP).

Bis-dPEG®3-NHS Ester is a PEG polymer categorised as homobifunctional PEG (X-PEG X). Used as a linker, bis-dPEG®3-NHS Ester is used to attached PEG to proteins, peptides, oligonucleotides, nanoparticles and small molecules via pegylation, a bioconjugation technique.

Dipeptidyl-peptidase IV (DPP4) is a complex enzyme that is expressed in the pancreas and regulates glucose-dependent insulinotropic polypeptides. DPP4 cleaves the amino terminal dipeptide from these polypeptides, which prevents the activation of pancreatic β-cells. The recombinant human form of this enzyme has been shown to activate T cells and induce apoptosis in insect cells. Its activity against chemokines in vitro may be due to its ability to cleave glycosylated polypeptides. This enzyme also has anti-inflammatory effects by inhibiting the production of proinflammatory cytokines such as tumor necrosis factor α (TNFα), interleukin 1β (IL1β), and IL6.

GLP-1 (Human, Rat, Mouse)-EIA Kit is a ready-to-use kit that contains a recombinant human GLP-1 peptide. This kit is designed for the quantitative measurement of GLP-1 in human serum or plasma by ELISA. It uses a polyclonal antibody to detect the protein and has no cross-reactivity with other pancreatic hormones. The assay can be used with rat and mouse samples as well.

Boc-Gly-Arg-Arg-AMC is a research tool that has a high purity and is used in cell biology, antibody production, ion channels, and protein interactions. It is an inhibitor of ion channels, which can be used for pharmacology to study the function of ion channels. Boc-Gly-Arg-Arg-AMC has also been shown to inhibit binding between the ligand and receptor.

MAL dPEG®6-Acid is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. MAL dPEG®6-Acid is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

Orexin-A (Human, 17-33) is a neuropeptide also known as hypocretin-1 and this product is available as a 0.1 mg vial. Orexin-A is primarily produced by a group of neurons located in the lateral hypothalamus of the brain, known as the orexinergic neurons.
Orexin-A is involved in regulating a variety of physiological functions, including the sleep-wake cycle, appetite, energy metabolism, and reward pathways. It acts as an agonist for two G protein-coupled receptors, known as orexin receptor 1 and orexin receptor 2.
Studies have shown that disruption of orexin signaling can lead to sleep disorders, obesity, and other metabolic disorders. Orexin-A has also been studied for its potential as a therapeutic target for the treatment of these disorders.

Arphamenine B is an enzyme inhibitor that inhibits metalloproteinases and serine proteases. It has been shown to be a potent osteoinductive agent in cell culture. Arphamenine B has also been found to have a depressant effect on the growth of cells in culture, with lysine residues as the probable site of action. Arphamenine B has also been shown to inhibit soybean trypsin, which is a serine protease enzyme.

Neuropeptide W-30 (Rat) is a peptide that belongs to the family of neuropeptides. It has been identified as an inhibitor of the ion channel TRPV1 and TRPA1, which are involved in pain perception. Neuropeptide W-30 (Rat) also inhibits the activation of phospholipase C, protein kinase C, and cAMP response element binding protein. Neuropeptide W-30 (Rat) is used as a research tool for studying protein interactions and for pharmacological studies.

Chromogranin A (Human, 286-301 Amide) is a protein that belongs to the class of peptides. It is a major component of the chromaffin granules in the adrenal medulla and in neuroendocrine cells in various parts of the brain. There are two types of chromogranin A, which have 286-301 amino acids. Chromogranin A is an activator for G-protein coupled receptors, ion channels, and ligands. This protein has been used as a research tool in Cell Biology and as an inhibitor in Pharmacology.

Azido-dPEG® 11-amine is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. Azido-dPEG® 11-amine is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

Oxytocin is a peptide hormone that is produced by the hypothalamus and released by the pituitary gland. It is used to induce labor, control postpartum bleeding and stimulate milk production. Oxytocin also plays a role in sexual arousal, social recognition, and trust. It has been shown to have an inhibitory effect on many types of ion channels, including those found in the heart, central nervous system, and blood vessels. Oxytocin binds to receptors that are found throughout the body and brain. The receptor for oxytocin is known as OXT. This receptor belongs to the G-protein coupled receptor family of receptors. Oxytocin was first isolated from sheep serum in 1906 by Henry Dale and Charles Robert Harington. It was later synthesized in 1953 by Vincent du Vigneaud. This product has disulfide bonds between Cys1-Cys6.

Bis-ACV is a synthetic compound that has the ability to act as a carbon source for filamentous fungi. It can also be used to regulate the expression of genes and enzymes in filamentous fungi. Bis-ACV has been shown to increase the production of cytosolic calcium, thereby stimulating enzyme activities in various organisms. It is an oligosaccharide with a molecular weight of 548 Daltons and contains two acetyl groups, which are attached to glucose residues on the same side of the molecule. The biological sample was purified by HPLC and the subunits were identified by mass spectrometry. The sequence analysis revealed that Bis-ACV is composed of repeating units that have the structure of N-acetylglucosamine linked via alpha (1->4) glycosidic bonds.

Cl-Ac-(OH)Leu-Ala-Gly-NH₂ is a peptide with a molecular weight of 736.2 Da. It is an inhibitor of the enzyme protein kinase C (PKC). Cl-Ac-(OH)Leu-Ala-Gly-NH₂ has been shown to activate PKC by binding to specific domains in the enzyme, which leads to the phosphorylation and activation of PKC's regulatory subunits. This peptide can be used as a research tool in studies involving PKC and also as an antibody carrier for Western blotting and immunohistochemistry.

Amino-dPEG®6-t-Butyl Ester is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. Amino-dPEG®6-t-Butyl Ester is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

Bis-dPEG®29-Acid is a PEG polymer categorised as homobifunctional PEG (X-PEG X). Used as a linker, bis-dPEG®29-Acid is used to attached PEG to proteins, peptides, oligonucleotides, nanoparticles and small molecules via pegylation, a bioconjugation technique.

Leu-pNA is a protein synthesis inhibitor that binds to the active site of the enzyme peptidyl prolyl cis-trans isomerase (PPIase). This inhibitor prevents the enzyme from catalyzing the conversion of proline residues in peptides to their cis or trans isomers. Leu-pNA has been shown to inhibit proteolytic enzymes such as soybean trypsin and activated proteases, and also has an inhibitory effect on polymerase chain reaction (PCR) enzyme activities. The binding of Leu-pNA to PPIase can be reversed by heating at 60°C for 20 minutes.

This product which is available as a 0.5mg vial is amino acids 1-31 of the 84 amino acid parathyroid hormone (PTH) and can be used as an adenylate cyclase and bone growth stimulating peptide.
PTH is a peptide hormone that is secreted from the parathyroid gland in the event of abnormal serum calcium levels and it ultimately regulates calcium and phosphate levels in the body. The PTH exerts its activity through binding to the G-protein coupled receptor type 1 PTH receptor, which activates adenylate cyclase or phospholipase C thus activating pathways involved in the mediation of bone resorption and bone formation. This product is suitable for life science applications.

Endothelin-1 is a peptide that acts as a vasoconstrictor and plays an important role in the regulation of blood pressure. Endothelin-1 is also an endogenous ligand for two G protein-coupled receptors, ETA and ETB. Interesting Endothelin-1 is the most abundant isoform and is expressed in endothelial cells of every blood vessel. It exerts its vasoconstrictor effects through binding to ETA receptors located on the smooth muscle. This product has disulfide bonds between Cys1-Cys15 and Cys3-Cys11, sourced from Porcine, Canine, Rat, Mouse and Bovine and is available as a 0.1mg vial.

GIP (Gastric Inhibitory Polypeptide) is a peptide hormone that belongs to the family of incretin hormones. GIP has been shown to have an insulinotropic effect, which is mediated by its activation of glucose-dependent insulin release from pancreatic β-cells. It also has effects on lipid metabolism and plays a role in the regulation of food intake. GIP is produced by K cells in the ileum and colon and released into the bloodstream following food intake. The binding of GIP to its receptors leads to inhibition of gastric acid secretion, stimulation of gallbladder contraction, increased blood flow to the stomach, relaxation of pyloric sphincter muscles, and inhibition of gastric motility. This product is highly pure (> 98%) with no detectable endotoxin or other microbial contamination.

m-dPEG®37-acid is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. m-dPEG®37-acid is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

A synthetic snake toxin sourced from the black mamba, Dendroaspis polylepis polylepis which can be applied as a L-type Ca2+ channel blocker. This product has disulfide bonds between Cys3-Cys22, Cys17-Cys39, Cys41-Cys52, and Cys53-Cys58 and is available as a 0.1mg vial.

m-dPEG®36-Azide (Azido-m-dPEG®36) is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. m-dPEG®36-Azide (Azido-m-dPEG®36) is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

Amino-dPEG® Acid is a PEG compound with two different functional groups (also known as heterobifunctional). Unlike homobifunctional PEG compounds (same functional group on both ends), this type of compounds are more versatile as have two different anchor points. Amino-dPEG® Acid is used as a linker and spacer to add a PEG moiety, via pegylation (a bioconjugation technique) to proteins, peptides, oligonucleotides, small molecules and nanoparticles.

This product contains disulfide bonds between Cys3-Cys14 can is suitable for use in radioimmunoassays. Somatostatin is a peptide hormone that is produced by the hypothalamus and inhibits the release of growth hormones, insulin, and glucagon. It is widely expressed throughout the body for example in the gastrointestinal (GI) tract, hypothalamus, pancreas and the central nervous system. In the central nervous system somatostatin plays a role in neurotransmission modification and it has also demonstrated to be effective against a number of cancers such as squamous carcinoma.